3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo 'count(false): ',count(false),"\n"; echo 'count(0): ',count(0),"\n"; echo 'count(array(false)): ',count(array(false)),"\n"; echo 'count(array(0)): ',count(array(0)),"\n"; echo 'count(null): ',count(null),"\n"; echo 'count(array()): ',count(array()),"\n"; class Test {} $t = new Test(); echo 'count($t): ', count($t), "\n"; $emptyit = new EmptyIterator; echo 'count($emptyit): ', count($emptyit), "\n"; // obj w/no properties not empty PHP5+ echo 'empty(null):', empty(null), "\n"; echo 'empty(array():',empty(array()),"\n"; // obj w/no properties not empty PHP5+ echo 'empty($t):',empty($t),"\n";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0140.00016.75
8.3.50.0100.01021.89
8.3.40.0040.01118.79
8.3.30.0120.00319.09
8.3.20.0080.00620.34
8.3.10.0050.00323.61
8.3.00.0030.00617.50
8.2.180.0040.01418.54
8.2.170.0100.01022.96
8.2.160.0140.00020.22
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.01026.16
8.2.120.0040.00422.43
8.2.110.0050.00522.25
8.2.100.0000.01118.03
8.2.90.0000.00819.18
8.2.80.0030.00518.03
8.2.70.0040.00417.63
8.2.60.0040.00417.80
8.2.50.0090.00018.07
8.2.40.0080.00018.09
8.2.30.0030.00617.94
8.2.20.0080.00017.56
8.2.10.0070.00017.93
8.2.00.0030.00717.68
8.1.280.0110.00425.92
8.1.270.0100.00022.21
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0040.00423.98
8.1.230.0030.00919.22
8.1.220.0050.00317.74
8.1.210.0000.00918.77
8.1.200.0030.00717.35
8.1.190.0070.00017.54
8.1.180.0000.00818.10
8.1.170.0080.00018.57
8.1.160.0040.00422.00
8.1.150.0040.00418.52
8.1.140.0060.00317.28
8.1.130.0030.00317.64
8.1.120.0030.00617.39
8.1.110.0000.00817.22
8.1.100.0040.00417.23
8.1.90.0040.00417.30
8.1.80.0040.00417.23
8.1.70.0070.00017.31
8.1.60.0030.00517.45
8.1.50.0060.00317.46
8.1.40.0030.00517.49
8.1.30.0030.00517.53
8.1.20.0080.00017.50
8.1.10.0000.00817.55
8.1.00.0030.00617.46
8.0.300.0040.00418.77
8.0.290.0070.00017.05
8.0.280.0030.00318.43
8.0.270.0040.00417.18
8.0.260.0030.00317.17
8.0.250.0000.00716.84
8.0.240.0060.00316.95
8.0.230.0000.00716.96
8.0.220.0030.00316.87
8.0.210.0070.00016.90
8.0.200.0040.00416.97
8.0.190.0000.00816.84
8.0.180.0040.00416.93
8.0.170.0000.00816.84
8.0.160.0040.00416.88
8.0.150.0050.00316.80
8.0.140.0040.00416.85
8.0.130.0000.00613.31
8.0.120.0040.00416.91
8.0.110.0040.00416.80
8.0.100.0030.00316.95
8.0.90.0000.00816.79
8.0.80.0080.00816.98
8.0.70.0000.00816.71
8.0.60.0000.00716.94
8.0.50.0040.00416.79
8.0.30.0130.00616.96
8.0.20.0140.00517.40
8.0.10.0030.00617.03
8.0.00.0090.00616.70
7.4.330.0050.00015.09
7.4.320.0040.00416.61
7.4.300.0050.00216.42
7.4.290.0000.00716.52
7.4.280.0070.00016.45
7.4.270.0000.00816.58
7.4.260.0070.00016.62
7.4.250.0040.00416.45
7.4.240.0060.00216.45
7.4.230.0070.00016.49
7.4.220.0130.00616.54
7.4.210.0110.00616.59
7.4.200.0000.00816.70
7.4.190.0050.00316.70
7.4.160.0150.00316.34
7.4.150.0120.00617.40
7.4.140.0060.01217.86
7.4.130.0080.00816.62
7.4.120.0140.00716.47
7.4.110.0120.00416.42
7.4.100.0100.00716.34
7.4.90.0110.00716.50
7.4.80.0060.01219.39
7.4.70.0080.00816.45
7.4.60.0060.00916.58
7.4.50.0040.00416.53
7.4.40.0110.00622.77
7.4.30.0030.01416.38
7.4.00.0070.01015.05
7.3.330.0000.00513.29
7.3.320.0020.00213.23
7.3.310.0070.00016.33
7.3.300.0000.00716.19
7.3.290.0090.00616.24
7.3.280.0100.01216.27
7.3.270.0050.01117.40
7.3.260.0060.01216.52
7.3.250.0050.01216.33
7.3.240.0170.00016.22
7.3.230.0030.01316.39
7.3.210.0160.00016.51
7.3.200.0090.00919.39
7.3.190.0140.00716.48
7.3.180.0100.00716.30
7.3.170.0060.01116.46
7.3.160.0070.01616.32
7.3.120.0120.00314.84
7.2.330.0120.01316.61
7.2.320.0060.01516.77
7.2.310.0120.01216.32
7.2.300.0090.00816.71
7.2.290.0060.01016.82
7.2.60.0030.01416.92
7.2.00.0070.00719.29
7.1.200.0060.01315.60
7.1.100.0060.00618.05
7.1.70.0050.00316.91
7.1.60.0040.01219.33
7.1.50.0060.00916.83
7.1.00.0070.07022.30
7.0.200.0630.00614.41
7.0.140.0130.06022.08
7.0.60.0300.07319.91
7.0.50.0070.03717.91
7.0.40.0230.05719.96
7.0.30.0270.04020.23
7.0.20.0270.06720.21
7.0.10.0100.08020.12
7.0.00.0100.08020.23
5.6.280.0030.07720.87
5.6.210.0070.08720.52
5.6.200.0030.06018.17
5.6.190.0070.08320.60
5.6.180.0130.07320.33
5.6.170.0470.06320.59
5.6.160.0100.06320.52
5.6.150.0070.05018.23
5.6.140.0030.06318.15
5.6.130.0000.08318.17
5.6.120.0000.09021.13
5.6.110.0170.06321.02
5.6.100.0130.07321.12
5.6.90.0030.08721.04
5.6.80.0100.06320.52
5.5.350.0230.06020.47
5.5.340.0170.04318.02
5.5.330.0100.08020.27
5.5.320.0400.07320.30
5.5.310.0300.04720.23
5.5.300.0070.03317.99
5.5.290.0200.07317.95
5.5.280.0200.05020.91
5.5.270.0100.08320.80
5.5.260.0070.04020.87
5.5.250.0170.07320.63
5.5.240.0430.06320.04
5.4.450.0170.05719.47
5.4.440.0400.05319.21
5.4.430.0200.07719.35
5.4.420.0270.05019.47
5.4.410.0230.06719.07
5.4.400.0170.05719.26
5.4.390.0230.07019.28
5.4.380.0270.06018.79
5.4.370.0400.06018.72
5.4.360.0200.06318.62
5.4.350.0370.07318.70
5.4.340.0200.07018.84
5.4.320.0070.03612.51
5.4.310.0100.04112.51
5.4.300.0080.03712.52
5.4.290.0050.04212.51
5.4.280.0100.04812.38
5.4.270.0150.04512.38
5.4.260.0120.05112.38
5.4.250.0100.04012.38
5.4.240.0110.03612.38
5.4.230.0090.04912.37
5.4.220.0090.05112.37
5.4.210.0110.04912.37
5.4.200.0190.05112.37
5.4.190.0180.07012.36
5.4.180.0120.05212.36
5.4.170.0120.04812.37
5.4.160.0120.04212.37
5.4.150.0090.04412.37
5.4.140.0100.05412.06
5.4.130.0120.04712.04
5.4.120.0100.04612.00
5.4.110.0090.04712.00
5.4.100.0090.04412.00
5.4.90.0070.05012.00
5.4.80.0070.04212.00
5.4.70.0090.04412.00
5.4.60.0080.04612.00
5.4.50.0110.04212.00
5.4.40.0090.04711.98
5.4.30.0100.04911.98
5.4.20.0070.04811.97
5.4.10.0080.04611.98
5.4.00.0120.04411.47
5.3.290.0030.04212.80
5.3.280.0080.05512.71
5.3.270.0070.04712.72
5.3.260.0110.04812.72
5.3.250.0140.04712.72
5.3.240.0100.05112.72
5.3.230.0080.05212.71
5.3.220.0130.05312.68
5.3.210.0100.05012.68
5.3.200.0100.04812.68
5.3.190.0100.04312.68
5.3.180.0090.04212.67
5.3.170.0110.03312.66
5.3.160.0080.03612.68
5.3.150.0120.04412.67
5.3.140.0150.04812.66
5.3.130.0140.05212.65
5.3.120.0090.05512.66
5.3.110.0110.03812.66
5.3.100.0100.04512.12
5.3.90.0050.04112.09
5.3.80.0090.03512.07
5.3.70.0060.03912.08
5.3.60.0090.03612.07
5.3.50.0080.03512.00
5.3.40.0060.04112.00
5.3.30.0060.03911.95
5.3.20.0130.03811.74
5.3.10.0050.03911.70
5.3.00.0070.03611.69
5.2.170.0060.0319.18
5.2.160.0040.0339.19
5.2.150.0060.0319.19
5.2.140.0080.0409.18
5.2.130.0070.0379.14
5.2.120.0090.0339.14
5.2.110.0260.0559.15
5.2.100.0140.0369.14
5.2.90.0050.0459.14
5.2.80.0080.0469.14
5.2.70.0090.0409.14
5.2.60.0050.0319.09
5.2.50.0040.0329.06
5.2.40.0050.0309.04
5.2.30.0060.0369.02
5.2.20.0050.0449.00
5.2.10.0140.0448.91
5.2.00.0120.0378.79
5.1.60.0060.0328.06
5.1.50.0050.0338.07
5.1.40.0060.0328.05
5.1.30.0090.0328.40
5.1.20.0070.0278.42
5.1.10.0090.0318.14
5.1.00.0070.0338.14
5.0.50.0070.0256.63
5.0.40.0060.0256.49
5.0.30.0010.0436.30
5.0.20.0040.0286.27
5.0.10.0030.0306.25
5.0.00.0030.0346.23
4.4.90.0040.0204.78
4.4.80.0030.0194.75
4.4.70.0080.0194.75
4.4.60.0060.0204.75
4.4.50.0070.0214.77
4.4.40.0060.0344.71
4.4.30.0040.0224.75
4.4.20.0040.0214.84
4.4.10.0030.0224.84
4.4.00.0030.0314.76
4.3.110.0060.0194.66
4.3.100.0040.0224.66
4.3.90.0040.0224.64
4.3.80.0060.0514.58
4.3.70.0060.0424.63
4.3.60.0040.0254.63
4.3.50.0030.0224.63
4.3.40.0080.0294.54
4.3.30.0030.0183.29
4.3.20.0020.0183.27
4.3.10.0050.0223.23
4.3.00.0000.0277.81

preferences:
37.87 ms | 401 KiB | 5 Q